The mutant depicted on the new poster is Azazel (Jason Flemying, aka Vaughn's "good luck charm," having appeared in all of the movies Vaughn directed and several that he produced), a character that in the Marvel comic books dates back to Biblical times and is the father of the X-Man Nightcrawler (played by Alan Cumming in X2: X-Men United). Like Nightcrawler, Azazel can teleport, though to a much greater distance and with greater accuracy. Azazel can also shapeshift, project energy blasts, manipulate magic and is virtually immortal, though it's doubtful that Vaughn will bring this full range of abilities from the comic books into the movie because the character would be more powerful than the two mutant patriarchs of the movie, Xavier and Erik Lehnsherr (Michael Fassbender).

In addition to the new poster, a new international TV spot for First Class has turned up online that contains footage not included in any of the previous TV spots or trailers.